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        <title>从零开发一个WebSocket服务器 · 高性能服务器开发 技术专栏</title>
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        <li class="header">Part I</li>
        
        
    
        <li class="chapter " data-level="1.1" data-path="../../">
            
                <a href="../../">
            
                    
                    Introduction
            
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        <li class="chapter " data-level="1.2" data-path="../C++必知必会的知识点/">
            
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                    C++必知必会的知识点
            
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        <li class="chapter " data-level="1.2.1" data-path="../C++必知必会的知识点/如何成为一名合格的CC++开发者？.html">
            
                <a href="../C++必知必会的知识点/如何成为一名合格的CC++开发者？.html">
            
                    
                    如何成为一名合格的C/C++开发者？
            
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        <li class="chapter " data-level="1.2.2" data-path="../C++必知必会的知识点/不定参数函数实现var_arg系列的宏.html">
            
                <a href="../C++必知必会的知识点/不定参数函数实现var_arg系列的宏.html">
            
                    
                    不定参数函数实现var_arg系列的宏
            
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        <li class="chapter " data-level="1.2.3" data-path="../C++必知必会的知识点/你一定要搞明白的C函数调用方式与栈原理.html">
            
                <a href="../C++必知必会的知识点/你一定要搞明白的C函数调用方式与栈原理.html">
            
                    
                    你一定要搞明白的C函数调用方式与栈原理
            
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        <li class="chapter " data-level="1.2.4" data-path="../C++必知必会的知识点/深入理解CC++中的指针.html">
            
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                    深入理解C/C++中的指针
            
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                    详解C++11中的智能指针
            
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                    C++17结构化绑定
            
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                    C++必须掌握的pimpl惯用法
            
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                    用Visual Studio调试Linux程序
            
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                    如何使用Visual Studio管理和阅读开源项目代码
            
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        <li class="chapter " data-level="1.2.10" data-path="../C++必知必会的知识点/利用cmake工具生成VisualStudio工程文件.html">
            
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                    利用cmake工具生成Visual Studio工程文件
            
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            </ul>
            
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        <li class="chapter " data-level="1.3" data-path="../多线程/">
            
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                    多线程
            
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        <li class="chapter " data-level="1.3.1" data-path="../多线程/后台C++开发你一定要知道的条件变量.html">
            
                <a href="../多线程/后台C++开发你一定要知道的条件变量.html">
            
                    
                    后台C++开发你一定要知道的条件变量
            
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        <li class="chapter " data-level="1.3.2" data-path="../多线程/整型变量赋值是原子操作吗？.html">
            
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                    整型变量赋值是原子操作吗？
            
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            </ul>
            
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        <li class="divider"></li>
        
        
    
        <li class="chapter " data-level="2.1" data-path="../网络编程/">
            
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                    网络编程
            
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        <li class="chapter " data-level="2.1.1" data-path="../网络编程/bind函数重难点解析.html">
            
                <a href="../网络编程/bind函数重难点解析.html">
            
                    
                    bind 函数重难点解析
            
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        <li class="chapter " data-level="2.1.2" data-path="../网络编程/connect函数在阻塞和非阻塞模式下的行为.html">
            
                <a href="../网络编程/connect函数在阻塞和非阻塞模式下的行为.html">
            
                    
                    connect 函数在阻塞和非阻塞模式下的行为
            
                </a>
            

            
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        <li class="chapter " data-level="2.1.3" data-path="../网络编程/select函数重难点解析.html">
            
                <a href="../网络编程/select函数重难点解析.html">
            
                    
                    select 函数重难点解析
            
                </a>
            

            
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        <li class="chapter " data-level="2.1.4" data-path="../网络编程/Linuxepoll模型（含LT模式和ET模式详解）.html">
            
                <a href="../网络编程/Linuxepoll模型（含LT模式和ET模式详解）.html">
            
                    
                    Linux epoll 模型（含LT 模式和 ET 模式详解）
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.5" data-path="../网络编程/socket的阻塞模式和非阻塞模式.html">
            
                <a href="../网络编程/socket的阻塞模式和非阻塞模式.html">
            
                    
                    socket 的阻塞模式和非阻塞模式
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.6" data-path="../网络编程/非阻塞模式下send和recv函数的返回值.html">
            
                <a href="../网络编程/非阻塞模式下send和recv函数的返回值.html">
            
                    
                    非阻塞模式下 send 和 recv 函数的返回值
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.7" data-path="../网络编程/服务器开发通信协议设计介绍.html">
            
                <a href="../网络编程/服务器开发通信协议设计介绍.html">
            
                    
                    服务器开发通信协议设计介绍
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.8" data-path="../网络编程/TCP协议如何解决粘包、半包问题.html">
            
                <a href="../网络编程/TCP协议如何解决粘包、半包问题.html">
            
                    
                    TCP 协议如何解决粘包、半包问题
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.9" data-path="../网络编程/网络通信中收发数据的正确姿势.html">
            
                <a href="../网络编程/网络通信中收发数据的正确姿势.html">
            
                    
                    网络通信中收发数据的正确姿势
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.1.10" data-path="../网络编程/服务器端发数据时，如果对端一直不收，怎么办？.html">
            
                <a href="../网络编程/服务器端发数据时，如果对端一直不收，怎么办？.html">
            
                    
                    服务器端发数据时，如果对端一直不收，怎么办？
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    

    
        
        <li class="divider"></li>
        
        
    
        <li class="chapter " data-level="3.1" data-path="../程序员必知必会的网络命令/">
            
                <a href="../程序员必知必会的网络命令/">
            
                    
                    程序员必知必会的网络命令
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="3.1.1" data-path="../程序员必知必会的网络命令/利用telnet命令发电子邮件.html">
            
                <a href="../程序员必知必会的网络命令/利用telnet命令发电子邮件.html">
            
                    
                    利用telnet命令发电子邮件
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="3.1.2" data-path="../程序员必知必会的网络命令/做Java或者C++开发都应该知道的lsof命令.html">
            
                <a href="../程序员必知必会的网络命令/做Java或者C++开发都应该知道的lsof命令.html">
            
                    
                    做Java或者C++开发都应该知道的lsof命令
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="3.1.3" data-path="../程序员必知必会的网络命令/Linux网络故障排查的瑞士军刀.html">
            
                <a href="../程序员必知必会的网络命令/Linux网络故障排查的瑞士军刀.html">
            
                    
                    Linux网络故障排查的瑞士军刀nc命令
            
                </a>
            

            
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        <li class="chapter " data-level="3.1.4" data-path="../程序员必知必会的网络命令/Linuxtcpdump使用介绍.html">
            
                <a href="../程序员必知必会的网络命令/Linuxtcpdump使用介绍.html">
            
                    
                    Linux tcpdump使用详解
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="3.1.5" data-path="../程序员必知必会的网络命令/从抓包的角度分析connect函数的连接过程.html">
            
                <a href="../程序员必知必会的网络命令/从抓包的角度分析connect函数的连接过程.html">
            
                    
                    从抓包的角度分析connect函数的连接过程
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="3.1.6" data-path="../程序员必知必会的网络命令/服务器开发中网络数据分析与故障排查经验漫谈.html">
            
                <a href="../程序员必知必会的网络命令/服务器开发中网络数据分析与故障排查经验漫谈.html">
            
                    
                    服务器开发中网络数据分析与故障排查经验漫谈
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    

    
        
        <li class="header">Part II</li>
        
        
    
        <li class="chapter " data-level="4.1" data-path="../高性能服务器框架设计/">
            
                <a href="../高性能服务器框架设计/">
            
                    
                    高性能服务器框架设计
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="4.1.1" data-path="../高性能服务器框架设计/主线程与工作线程的分工.html">
            
                <a href="../高性能服务器框架设计/主线程与工作线程的分工.html">
            
                    
                    主线程与工作线程的分工
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="4.1.2" data-path="../高性能服务器框架设计/Reactor模式.html">
            
                <a href="../高性能服务器框架设计/Reactor模式.html">
            
                    
                    Reactor模式
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="4.1.3" data-path="../高性能服务器框架设计/实例：一个服务器程序的架构介绍.html">
            
                <a href="../高性能服务器框架设计/实例：一个服务器程序的架构介绍.html">
            
                    
                    实例：一个服务器程序的架构介绍
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="4.1.4" data-path="../高性能服务器框架设计/错误码系统的设计.html">
            
                <a href="../高性能服务器框架设计/错误码系统的设计.html">
            
                    
                    错误码系统的设计
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="4.1.5" data-path="../高性能服务器框架设计/日志系统的设计.html">
            
                <a href="../高性能服务器框架设计/日志系统的设计.html">
            
                    
                    日志系统的设计
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="4.1.6" data-path="../高性能服务器框架设计/如何设计断线自动重连机制.html">
            
                <a href="../高性能服务器框架设计/如何设计断线自动重连机制.html">
            
                    
                    如何设计断线自动重连机制
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="4.1.7" data-path="../高性能服务器框架设计/心跳包机制设计详解.html">
            
                <a href="../高性能服务器框架设计/心跳包机制设计详解.html">
            
                    
                    心跳包机制设计详解
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="4.1.8" data-path="../高性能服务器框架设计/业务数据处理一定要单独开线程吗.html">
            
                <a href="../高性能服务器框架设计/业务数据处理一定要单独开线程吗.html">
            
                    
                    业务数据处理一定要单独开线程吗
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="4.1.9" data-path="../高性能服务器框架设计/C++高性能服务器网络框架设计细节.html">
            
                <a href="../高性能服务器框架设计/C++高性能服务器网络框架设计细节.html">
            
                    
                    C++ 高性能服务器网络框架设计细节
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    

    
        
        <li class="divider"></li>
        
        
    
        <li class="chapter " data-level="5.1" data-path="./">
            
                <a href="./">
            
                    
                    服务器开发案例实战
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="5.1.1" data-path="从零实现一个http服务器.html">
            
                <a href="从零实现一个http服务器.html">
            
                    
                    从零实现一个http服务器
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="5.1.2" data-path="从零实现一款12306刷票软件.html">
            
                <a href="从零实现一款12306刷票软件.html">
            
                    
                    从零实现一款12306刷票软件
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="5.1.3" data-path="从零实现一个邮件收发客户端.html">
            
                <a href="从零实现一个邮件收发客户端.html">
            
                    
                    从零实现一个邮件收发客户端
            
                </a>
            

            
        </li>
    
        <li class="chapter active" data-level="5.1.4" data-path="从零开发一个WebSocket服务器.html">
            
                <a href="从零开发一个WebSocket服务器.html">
            
                    
                    从零开发一个WebSocket服务器
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="5.1.5" data-path="1从一款多人联机实时对战游戏开始.html">
            
                <a href="1从一款多人联机实时对战游戏开始.html">
            
                    
                    从零学习开源项目系列（一） 从一款多人联机实时对战游戏开始
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="5.1.6" data-path="2最后一战概况.html">
            
                <a href="2最后一战概况.html">
            
                    
                    从零学习开源项目系列（二） 最后一战概况
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="5.1.7" data-path="3CSBattleMgr服务源码研究.html">
            
                <a href="3CSBattleMgr服务源码研究.html">
            
                    
                    从零学习开源项目系列（三） CSBattleMgr服务源码研究
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="5.1.8" data-path="4LogServer源码探究.html">
            
                <a href="4LogServer源码探究.html">
            
                    
                    从零学习开源项目系列（四）LogServer源码探究
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    

    
        
        <li class="header">Part III</li>
        
        
    
        <li class="chapter " data-level="6.1" data-path="../TeamTalk源码解析/">
            
                <a href="../TeamTalk源码解析/">
            
                    
                    TeamTalk IM源码分析
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="6.1.1" data-path="../TeamTalk源码解析/01TeamTalk介绍.html">
            
                <a href="../TeamTalk源码解析/01TeamTalk介绍.html">
            
                    
                    01 TeamTalk介绍
            
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        <li class="chapter " data-level="6.1.2" data-path="../TeamTalk源码解析/02服务器端的程序的编译与部署.html">
            
                <a href="../TeamTalk源码解析/02服务器端的程序的编译与部署.html">
            
                    
                    02 服务器端的程序的编译与部署
            
                </a>
            

            
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        <li class="chapter " data-level="6.1.3" data-path="../TeamTalk源码解析/03服务器端的程序架构介绍.html">
            
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                    03 服务器端的程序架构介绍
            
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        <li class="chapter " data-level="6.1.4" data-path="../TeamTalk源码解析/04服务器端db_proxy_server源码分析.html">
            
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                    04 服务器端db_proxy_server源码分析
            
                </a>
            

            
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        <li class="chapter " data-level="6.1.5" data-path="../TeamTalk源码解析/05服务器端msg_server源码分析.html">
            
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                    05 服务器端msg_server源码分析
            
                </a>
            

            
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        <li class="chapter " data-level="6.1.6" data-path="../TeamTalk源码解析/06服务器端login_server源码分析.html">
            
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                    06 服务器端login_server源码分析
            
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        <li class="chapter " data-level="6.1.7" data-path="../TeamTalk源码解析/07服务器端msfs源码分析.html">
            
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                    07 服务器端msfs源码分析
            
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        <li class="chapter " data-level="6.1.8" data-path="../TeamTalk源码解析/08服务器端file_server源码分析.html">
            
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                    08 服务器端file_server源码分析
            
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        <li class="chapter " data-level="6.1.9" data-path="../TeamTalk源码解析/09服务器端route_server源码分析.html">
            
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                    09 服务器端route_server源码分析
            
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        <li class="chapter " data-level="6.1.10" data-path="../TeamTalk源码解析/10开放一个TeamTalk测试服务器地址和几个测试账号.html">
            
                <a href="../TeamTalk源码解析/10开放一个TeamTalk测试服务器地址和几个测试账号.html">
            
                    
                    10 开放一个TeamTalk测试服务器地址和几个测试账号
            
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        <li class="chapter " data-level="6.1.11" data-path="../TeamTalk源码解析/11pc客户端源码分析.html">
            
                <a href="../TeamTalk源码解析/11pc客户端源码分析.html">
            
                    
                    11 pc客户端源码分析
            
                </a>
            

            
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            </ul>
            
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        <li class="divider"></li>
        
        
    
        <li class="chapter " data-level="7.1" data-path="../libevent源码深度剖析/">
            
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                    libevent源码深度剖析
            
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                    libevent源码深度剖析01
            
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        <li class="chapter " data-level="7.1.2" data-path="../libevent源码深度剖析/libevent源码深度剖析02.html">
            
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                    libevent源码深度剖析02
            
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        <li class="chapter " data-level="7.1.3" data-path="../libevent源码深度剖析/libevent源码深度剖析03.html">
            
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                    libevent源码深度剖析03
            
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        <li class="chapter " data-level="7.1.4" data-path="../libevent源码深度剖析/libevent源码深度剖析04.html">
            
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                    libevent源码深度剖析04
            
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        <li class="chapter " data-level="7.1.5" data-path="../libevent源码深度剖析/libevent源码深度剖析05.html">
            
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                    libevent源码深度剖析05
            
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        <li class="chapter " data-level="7.1.6" data-path="../libevent源码深度剖析/libevent源码深度剖析06.html">
            
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                    libevent源码深度剖析06
            
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        <li class="chapter " data-level="7.1.7" data-path="../libevent源码深度剖析/libevent源码深度剖析07.html">
            
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                    libevent源码深度剖析07
            
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        <li class="chapter " data-level="7.1.8" data-path="../libevent源码深度剖析/libevent源码深度剖析08.html">
            
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                    libevent源码深度剖析08
            
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        <li class="chapter " data-level="7.1.9" data-path="../libevent源码深度剖析/libevent源码深度剖析09.html">
            
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                    libevent源码深度剖析09
            
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        <li class="chapter " data-level="7.1.10" data-path="../libevent源码深度剖析/libevent源码深度剖析10.html">
            
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                    libevent源码深度剖析10
            
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        <li class="chapter " data-level="7.1.11" data-path="../libevent源码深度剖析/libevent源码深度剖析11.html">
            
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                    libevent源码深度剖析11
            
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        <li class="chapter " data-level="7.1.12" data-path="../libevent源码深度剖析/libevent源码深度剖析12.html">
            
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                    libevent源码深度剖析12
            
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        <li class="chapter " data-level="7.1.13" data-path="../libevent源码深度剖析/libevent源码深度剖析13.html">
            
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                    libevent源码深度剖析13
            
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            </ul>
            
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        <li class="chapter " data-level="7.2" data-path="../leveldb源码分析/">
            
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                    leveldb源码分析
            
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        <li class="chapter " data-level="7.2.1" data-path="../leveldb源码分析/leveldb源码分析1.html">
            
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                    leveldb源码分析1
            
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        <li class="chapter " data-level="7.2.2" data-path="../leveldb源码分析/leveldb源码分析2.html">
            
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                    leveldb源码分析2
            
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        <li class="chapter " data-level="7.2.3" data-path="../leveldb源码分析/leveldb源码分析3.html">
            
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                    leveldb源码分析3
            
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        <li class="chapter " data-level="7.2.4" data-path="../leveldb源码分析/leveldb源码分析4.html">
            
                <a href="../leveldb源码分析/leveldb源码分析4.html">
            
                    
                    leveldb源码分析4
            
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        <li class="chapter " data-level="7.2.5" data-path="../leveldb源码分析/leveldb源码分析5.html">
            
                <a href="../leveldb源码分析/leveldb源码分析5.html">
            
                    
                    leveldb源码分析5
            
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        <li class="chapter " data-level="7.2.6" data-path="../leveldb源码分析/leveldb源码分析6.html">
            
                <a href="../leveldb源码分析/leveldb源码分析6.html">
            
                    
                    leveldb源码分析6
            
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        <li class="chapter " data-level="7.2.7" data-path="../leveldb源码分析/leveldb源码分析7.html">
            
                <a href="../leveldb源码分析/leveldb源码分析7.html">
            
                    
                    leveldb源码分析7
            
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        <li class="chapter " data-level="7.2.8" data-path="../leveldb源码分析/leveldb源码分析8.html">
            
                <a href="../leveldb源码分析/leveldb源码分析8.html">
            
                    
                    leveldb源码分析8
            
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        <li class="chapter " data-level="7.2.9" data-path="../leveldb源码分析/leveldb源码分析9.html">
            
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                    leveldb源码分析9
            
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        <li class="chapter " data-level="7.2.10" data-path="../leveldb源码分析/leveldb源码分析10.html">
            
                <a href="../leveldb源码分析/leveldb源码分析10.html">
            
                    
                    leveldb源码分析10
            
                </a>
            

            
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        <li class="chapter " data-level="7.2.11" data-path="../leveldb源码分析/leveldb源码分析11.html">
            
                <a href="../leveldb源码分析/leveldb源码分析11.html">
            
                    
                    leveldb源码分析11
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="7.2.12" data-path="../leveldb源码分析/leveldb源码分析12.html">
            
                <a href="../leveldb源码分析/leveldb源码分析12.html">
            
                    
                    leveldb源码分析12
            
                </a>
            

            
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        <li class="chapter " data-level="7.2.13" data-path="../leveldb源码分析/leveldb源码分析13.html">
            
                <a href="../leveldb源码分析/leveldb源码分析13.html">
            
                    
                    leveldb源码分析13
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="7.2.14" data-path="../leveldb源码分析/leveldb源码分析14.html">
            
                <a href="../leveldb源码分析/leveldb源码分析14.html">
            
                    
                    leveldb源码分析14
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="7.2.15" data-path="../leveldb源码分析/leveldb源码分析15.html">
            
                <a href="../leveldb源码分析/leveldb源码分析15.html">
            
                    
                    leveldb源码分析15
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="7.2.16" data-path="../leveldb源码分析/leveldb源码分析16.html">
            
                <a href="../leveldb源码分析/leveldb源码分析16.html">
            
                    
                    leveldb源码分析16
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="7.2.17" data-path="../leveldb源码分析/leveldb源码分析17.html">
            
                <a href="../leveldb源码分析/leveldb源码分析17.html">
            
                    
                    leveldb源码分析17
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="7.2.18" data-path="../leveldb源码分析/leveldb源码分析18.html">
            
                <a href="../leveldb源码分析/leveldb源码分析18.html">
            
                    
                    leveldb源码分析18
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="7.2.19" data-path="../leveldb源码分析/leveldb源码分析19.html">
            
                <a href="../leveldb源码分析/leveldb源码分析19.html">
            
                    
                    leveldb源码分析19
            
                </a>
            

            
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        <li class="chapter " data-level="7.2.20" data-path="../leveldb源码分析/leveldb源码分析20.html">
            
                <a href="../leveldb源码分析/leveldb源码分析20.html">
            
                    
                    leveldb源码分析20
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="7.2.21" data-path="../leveldb源码分析/leveldb源码分析21.html">
            
                <a href="../leveldb源码分析/leveldb源码分析21.html">
            
                    
                    leveldb源码分析21
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="7.2.22" data-path="../leveldb源码分析/leveldb源码分析22.html">
            
                <a href="../leveldb源码分析/leveldb源码分析22.html">
            
                    
                    leveldb源码分析22
            
                </a>
            

            
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            </ul>
            
        </li>
    

    
        
        <li class="divider"></li>
        
        
    
        <li class="chapter " data-level="8.1" data-path="../Memcached源码分析/">
            
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                    Memcached源码分析
            
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        <li class="chapter " data-level="8.1.1" data-path="../Memcached源码分析/00服务器资源调整.html">
            
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                    00 服务器资源调整
            
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        <li class="chapter " data-level="8.1.2" data-path="../Memcached源码分析/01初始化参数解析.html">
            
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                    01 初始化参数解析
            
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        <li class="chapter " data-level="8.1.3" data-path="../Memcached源码分析/02网络监听的建立.html">
            
                <a href="../Memcached源码分析/02网络监听的建立.html">
            
                    
                    02 网络监听的建立
            
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        <li class="chapter " data-level="8.1.4" data-path="../Memcached源码分析/03网络连接建立.html">
            
                <a href="../Memcached源码分析/03网络连接建立.html">
            
                    
                    03 网络连接建立
            
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        <li class="chapter " data-level="8.1.5" data-path="../Memcached源码分析/04内存初始化.html">
            
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                    04 内存初始化
            
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        <li class="chapter " data-level="8.1.6" data-path="../Memcached源码分析/05资源初始化.html">
            
                <a href="../Memcached源码分析/05资源初始化.html">
            
                    
                    05 资源初始化
            
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        <li class="chapter " data-level="8.1.7" data-path="../Memcached源码分析/06get过程.html">
            
                <a href="../Memcached源码分析/06get过程.html">
            
                    
                    06 get过程
            
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        <li class="chapter " data-level="8.1.8" data-path="../Memcached源码分析/07cas属性.html">
            
                <a href="../Memcached源码分析/07cas属性.html">
            
                    
                    07 cas属性
            
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        </li>
    
        <li class="chapter " data-level="8.1.9" data-path="../Memcached源码分析/08内存池.html">
            
                <a href="../Memcached源码分析/08内存池.html">
            
                    
                    08 内存池
            
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        <li class="chapter " data-level="8.1.10" data-path="../Memcached源码分析/09连接队列.html">
            
                <a href="../Memcached源码分析/09连接队列.html">
            
                    
                    09 连接队列
            
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        <li class="chapter " data-level="8.1.11" data-path="../Memcached源码分析/10Hash表操作.html">
            
                <a href="../Memcached源码分析/10Hash表操作.html">
            
                    
                    10 Hash表操作
            
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        <li class="chapter " data-level="8.1.12" data-path="../Memcached源码分析/12set操作.html">
            
                <a href="../Memcached源码分析/12set操作.html">
            
                    
                    12 set操作
            
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        <li class="chapter " data-level="8.1.13" data-path="../Memcached源码分析/13do_item_alloc操作.html">
            
                <a href="../Memcached源码分析/13do_item_alloc操作.html">
            
                    
                    13 do_item_alloc操作
            
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        <li class="chapter " data-level="8.1.14" data-path="../Memcached源码分析/14item结构.html">
            
                <a href="../Memcached源码分析/14item结构.html">
            
                    
                    14 item结构
            
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        <li class="chapter " data-level="8.1.15" data-path="../Memcached源码分析/15Hash表扩容.html">
            
                <a href="../Memcached源码分析/15Hash表扩容.html">
            
                    
                    15 Hash表扩容
            
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        <li class="chapter " data-level="8.1.16" data-path="../Memcached源码分析/16线程交互.html">
            
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                    16 线程交互
            
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        <li class="chapter " data-level="8.1.17" data-path="../Memcached源码分析/17状态机.html">
            
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                    17 状态机
            
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            </ul>
            
        </li>
    

    
        
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                    游戏开发专题
            
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                    1 游戏服务器开发的基本体系与服务器端开发的一些建议
            
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        <li class="chapter " data-level="9.1.2" data-path="../游戏开发专题/2网络游戏服务器开发框架设计介绍.html">
            
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                    2 网络游戏服务器开发框架设计介绍
            
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        </li>
    
        <li class="chapter " data-level="9.1.3" data-path="../游戏开发专题/3游戏后端开发需要掌握的知识.html">
            
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                    3 游戏后端开发需要掌握的知识
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="9.1.4" data-path="../游戏开发专题/4关于游戏服务端架构的整理.html">
            
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                    4 关于游戏服务端架构的整理
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="9.1.5" data-path="../游戏开发专题/5各类游戏对应的服务端架构.html">
            
                <a href="../游戏开发专题/5各类游戏对应的服务端架构.html">
            
                    
                    5 各类游戏对应的服务端架构
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="9.1.6" data-path="../游戏开发专题/6从腾讯QQgame高性能服务器集群架构看“分而治之”与“自治”等分布式架构设计原则.html">
            
                <a href="../游戏开发专题/6从腾讯QQgame高性能服务器集群架构看“分而治之”与“自治”等分布式架构设计原则.html">
            
                    
                    6 从腾讯QQgame高性能服务器集群架构看“分而治之”与“自治”等分布式架构设计原则
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="9.1.7" data-path="../游戏开发专题/7QQ游戏百万人同时在线服务器架构实现.html">
            
                <a href="../游戏开发专题/7QQ游戏百万人同时在线服务器架构实现.html">
            
                    
                    7 QQ游戏百万人同时在线服务器架构实现
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="9.1.8" data-path="../游戏开发专题/8大型多人在线游戏服务器架构设计.html">
            
                <a href="../游戏开发专题/8大型多人在线游戏服务器架构设计.html">
            
                    
                    8 大型多人在线游戏服务器架构设计
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="9.1.9" data-path="../游戏开发专题/9百万用户级游戏服务器架构设计.html">
            
                <a href="../游戏开发专题/9百万用户级游戏服务器架构设计.html">
            
                    
                    9 百万用户级游戏服务器架构设计
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="9.1.10" data-path="../游戏开发专题/10十万在线的WebGame的数据库设计思路.html">
            
                <a href="../游戏开发专题/10十万在线的WebGame的数据库设计思路.html">
            
                    
                    10 十万在线的WebGame的数据库设计思路
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="9.1.11" data-path="../游戏开发专题/11一种高性能网络游戏服务器架构设计.html">
            
                <a href="../游戏开发专题/11一种高性能网络游戏服务器架构设计.html">
            
                    
                    11 一种高性能网络游戏服务器架构设计
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="9.1.12" data-path="../游戏开发专题/12经典游戏服务器端架构概述.html">
            
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                    12 经典游戏服务器端架构概述
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="9.1.13" data-path="../游戏开发专题/13游戏跨服架构进化之路.html">
            
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                    13 游戏跨服架构进化之路
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    

    
        
        <li class="header">Part IV</li>
        
        
    
        <li class="chapter " data-level="10.1" data-path="../程序员面试题精讲/">
            
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                    程序员面试题精讲
            
                </a>
            

            
            <ul class="articles">
                
    
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                    腾讯后台开发实习生技能要求
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="10.1.2" data-path="../程序员面试题精讲/聊聊如何拿大厂的offer.html">
            
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                    聊聊如何拿大厂的 offer
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="10.1.3" data-path="../程序员面试题精讲/网络通信题目集锦.html">
            
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                    网络通信题目集锦
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="10.1.4" data-path="../程序员面试题精讲/我面试后端开发经理的经历.html">
            
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                    我面试后端开发经理的经历
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="10.1.5" data-path="../程序员面试题精讲/LinuxCC++后端开发面试问哪些问题.html">
            
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                    Linux C/C++后端开发面试问哪些问题
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="10.2" data-path="../职业规划/">
            
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                    职业规划
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="10.2.1" data-path="../职业规划/给工作4年迷茫的程序员们的一点建议.html">
            
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                    给工作 4 年迷茫的程序员们的一点建议
            
                </a>
            

            
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        <li class="chapter " data-level="10.2.2" data-path="../职业规划/聊聊技术人员的常见的职业问题.html">
            
                <a href="../职业规划/聊聊技术人员的常见的职业问题.html">
            
                    
                    聊聊技术人员的常见的职业问题
            
                </a>
            

            
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        <li class="chapter " data-level="10.2.3" data-path="../职业规划/写给那些傻傻想做服务器开发的朋友.html">
            
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                    写给那些傻傻想做服务器开发的朋友
            
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        </li>
    

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        <li class="chapter " data-level="10.3" data-path="../自我提升与开源代码/">
            
                <a href="../自我提升与开源代码/">
            
                    
                    自我提升与开源代码
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="10.3.1" data-path="../自我提升与开源代码/2020年好好读一读开源代码吧.html">
            
                <a href="../自我提升与开源代码/2020年好好读一读开源代码吧.html">
            
                    
                    2020 年好好读一读开源代码吧
            
                </a>
            

            
        </li>
    

            </ul>
            
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        <li class="chapter " data-level="10.4" data-path="../后端开发相关的书籍/">
            
                <a href="../后端开发相关的书籍/">
            
                    
                    后端开发相关的书籍
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="10.4.1" data-path="../后端开发相关的书籍/后台开发应该读的书.html">
            
                <a href="../后端开发相关的书籍/后台开发应该读的书.html">
            
                    
                    后台开发应该读的书
            
                </a>
            

            
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            </ul>
            
        </li>
    
        <li class="chapter " data-level="10.5" data-path="../程序员的简历/">
            
                <a href="../程序员的简历/">
            
                    
                    程序员的简历
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="10.5.1" data-path="../程序员的简历/程序员如何写简历.html">
            
                <a href="../程序员的简历/程序员如何写简历.html">
            
                    
                    程序员如何写简历
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="10.6" data-path="../程序员的薪资与年终奖那些事儿/">
            
                <a href="../程序员的薪资与年终奖那些事儿/">
            
                    
                    程序员的薪资与年终奖那些事儿
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="10.6.1" data-path="../程序员的薪资与年终奖那些事儿/技术面试与HR谈薪资技巧.html">
            
                <a href="../程序员的薪资与年终奖那些事儿/技术面试与HR谈薪资技巧.html">
            
                    
                    技术面试与HR谈薪资技巧
            
                </a>
            

            
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        <li class="chapter " data-level="10.6.2" data-path="../程序员的薪资与年终奖那些事儿/聊一聊程序员如何增加收入.html">
            
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                    聊一聊程序员如何增加收入
            
                </a>
            

            
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        <li class="chapter " data-level="10.6.3" data-path="../程序员的薪资与年终奖那些事儿/谈一谈年终奖.html">
            
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                    谈一谈年终奖
            
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        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="10.7" data-path="../程序员的烦心事/">
            
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                    程序员的烦心事
            
                </a>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="10.7.1" data-path="../程序员的烦心事/拒绝了一家公司的offer后，他们的副总和hr总监同时打电话来询问拒绝原因并极力要求加入，我该不该去？.html">
            
                <a href="../程序员的烦心事/拒绝了一家公司的offer后，他们的副总和hr总监同时打电话来询问拒绝原因并极力要求加入，我该不该去？.html">
            
                    
                    拒绝了一家公司的offer后，他们的副总和hr总监同时打电话来询问拒绝原因并极力要求加入，我该不该去？
            
                </a>
            

            
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        <li class="chapter " data-level="10.7.2" data-path="../程序员的烦心事/我是一名程序员，结婚时女友要求我用两年的工资作为彩礼，我该不该答应？.html">
            
                <a href="../程序员的烦心事/我是一名程序员，结婚时女友要求我用两年的工资作为彩礼，我该不该答应？.html">
            
                    
                    我是一名程序员，结婚时女友要求我用两年的工资作为彩礼，我该不该答应？
            
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            </ul>
            
        </li>
    
        <li class="chapter " data-level="10.8" data-path="../作者的故事/">
            
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                    作者的故事
            
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        <li class="chapter " data-level="10.8.1" data-path="../作者的故事/我的2019.html">
            
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                    我的 2019
            
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        <li class="chapter " data-level="10.8.2" data-path="../作者的故事/我是如何年薪五十万的.html">
            
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                    我是如何年薪五十万的
            
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						<div id="anchor-navigation-ex-navbar"><i class="fa fa-navicon"></i><ul><ul><li><span class="title-icon "></span><a href="#&#x4ECE;&#x96F6;&#x5F00;&#x53D1;&#x4E00;&#x4E2A;websocket&#x670D;&#x52A1;&#x5668;"><b></b>&#x4ECE;&#x96F6;&#x5F00;&#x53D1;&#x4E00;&#x4E2A;WebSocket&#x670D;&#x52A1;&#x5668;</a></li></ul></ul></div><h2 id="&#x4ECE;&#x96F6;&#x5F00;&#x53D1;&#x4E00;&#x4E2A;websocket&#x670D;&#x52A1;&#x5668;"><a name="&#x4ECE;&#x96F6;&#x5F00;&#x53D1;&#x4E00;&#x4E2A;websocket&#x670D;&#x52A1;&#x5668;" class="anchor-navigation-ex-anchor" href="#&#x4ECE;&#x96F6;&#x5F00;&#x53D1;&#x4E00;&#x4E2A;websocket&#x670D;&#x52A1;&#x5668;"><i class="fa fa-link" aria-hidden="true"></i></a>&#x4ECE;&#x96F6;&#x5F00;&#x53D1;&#x4E00;&#x4E2A;WebSocket&#x670D;&#x52A1;&#x5668;</h2>
<p>WebSocket &#x534F;&#x8BAE;&#x662F;&#x4E3A;&#x4E86;&#x89E3;&#x51B3; http &#x534F;&#x8BAE;&#x7684;&#x65E0;&#x72B6;&#x6001;&#x3001;&#x77ED;&#x8FDE;&#x63A5;&#xFF08;&#x901A;&#x5E38;&#x662F;&#xFF09;&#x548C;&#x670D;&#x52A1;&#x7AEF;&#x65E0;&#x6CD5;&#x4E3B;&#x52A8;&#x7ED9;&#x5BA2;&#x6237;&#x7AEF;&#x63A8;&#x9001;&#x6570;&#x636E;&#x7B49;&#x95EE;&#x9898;&#x800C;&#x5F00;&#x53D1;&#x7684;&#x65B0;&#x578B;&#x534F;&#x8BAE;&#xFF0C;&#x5176;&#x901A;&#x4FE1;&#x57FA;&#x7840;&#x4E5F;&#x662F;&#x57FA;&#x4E8E; TCP&#x3002;&#x7531;&#x4E8E;&#x8F83;&#x65E7;&#x7684;&#x6D4F;&#x89C8;&#x5668;&#x53EF;&#x80FD;&#x4E0D;&#x652F;&#x6301; WebSocket &#x534F;&#x8BAE;&#xFF0C;&#x6240;&#x4EE5;&#x4F7F;&#x7528; WebSocket &#x534F;&#x8BAE;&#x7684;&#x901A;&#x4FE1;&#x53CC;&#x65B9;&#x5728;&#x8FDB;&#x884C; TCP &#x4E09;&#x6B21;&#x63E1;&#x624B;&#x4E4B;&#x540E;&#xFF0C;&#x8FD8;&#x8981;&#x518D;&#x989D;&#x5916;&#x5730;&#x8FDB;&#x884C;&#x4E00;&#x6B21;&#x63E1;&#x624B;&#xFF0C;&#x8FD9;&#x4E00;&#x6B21;&#x7684;&#x63E1;&#x624B;&#x901A;&#x4FE1;&#x53CC;&#x65B9;&#x7684;&#x62A5;&#x6587;&#x683C;&#x5F0F;&#x662F;&#x57FA;&#x4E8E; HTTP &#x534F;&#x8BAE;&#x6539;&#x9020;&#x7684;&#x3002;</p>
<h4 id="websocket-&#x63E1;&#x624B;&#x8FC7;&#x7A0B;"><a name="websocket-&#x63E1;&#x624B;&#x8FC7;&#x7A0B;" class="anchor-navigation-ex-anchor" href="#websocket-&#x63E1;&#x624B;&#x8FC7;&#x7A0B;"><i class="fa fa-link" aria-hidden="true"></i></a>WebSocket &#x63E1;&#x624B;&#x8FC7;&#x7A0B;</h4>
<p>TCP &#x4E09;&#x6B21;&#x63E1;&#x624B;&#x7684;&#x8FC7;&#x7A0B;&#x6211;&#x4EEC;&#x5C31;&#x4E0D;&#x5728;&#x8FD9;&#x91CC;&#x8D58;&#x8FF0;&#x4E86;&#xFF0C;&#x4EFB;&#x4F55;&#x4E00;&#x672C;&#x7F51;&#x7EDC;&#x901A;&#x4FE1;&#x4E66;&#x7C4D;&#x4E0A;&#x90FD;&#x6709;&#x8BE6;&#x7EC6;&#x7684;&#x4ECB;&#x7ECD;&#x3002;&#x6211;&#x4EEC;&#x8FD9;&#x91CC;&#x6765;&#x4ECB;&#x7ECD;&#x4E00;&#x4E0B; WebSocket &#x901A;&#x4FE1;&#x6700;&#x540E;&#x4E00;&#x6B21;&#x7684;&#x63E1;&#x624B;&#x8FC7;&#x7A0B;&#x3002;</p>
<p>&#x63E1;&#x624B;&#x5F00;&#x59CB;&#x540E;&#xFF0C;&#x4E00;&#x65B9;&#x7ED9;&#x53E6;&#x5916;&#x4E00;&#x65B9;&#x53D1;&#x9001;&#x4E00;&#x4E2A; http &#x534F;&#x8BAE;&#x683C;&#x5F0F;&#x7684;&#x62A5;&#x6587;&#xFF0C;&#x8FD9;&#x4E2A;&#x62A5;&#x6587;&#x683C;&#x5F0F;&#x5927;&#x81F4;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre class="language-"><code>GET /realtime HTTP/1.1\r\n
Host: 127.0.0.1:9989\r\n
Connection: Upgrade\r\n
Pragma: no-cache\r\n
Cache-Control: no-cache\r\n
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64)\r\n
Upgrade: websocket\r\n
Origin: http://xyz.com\r\n
Sec-WebSocket-Version: 13\r\n
Accept-Encoding: gzip, deflate, br\r\n
Accept-Language: zh-CN,zh;q=0.9,en;q=0.8\r\n
Sec-WebSocket-Key: IqcAWodjyPDJuhGgZwkpKg==\r\n
Sec-WebSocket-Extensions: permessage-deflate; client_max_window_bits\r\n
\r\n
</code></pre><p>&#x5BF9;&#x8FD9;&#x4E2A;&#x683C;&#x5F0F;&#x6709;&#x5982;&#x4E0B;&#x8981;&#x6C42;&#xFF1A;</p>
<ul>
<li>&#x63E1;&#x624B;&#x5FC5;&#x987B;&#x662F;&#x4E00;&#x4E2A;&#x6709;&#x6548;&#x7684; HTTP &#x8BF7;&#x6C42;&#xFF1B;</li>
<li>&#x8BF7;&#x6C42;&#x7684;&#x65B9;&#x6CD5;&#x5FC5;&#x987B;&#x4E3A; GET&#xFF0C;&#x4E14; HTTP &#x7248;&#x672C;&#x5FC5;&#x987B;&#x662F; 1.1&#xFF1B;</li>
<li>&#x8BF7;&#x6C42;&#x5FC5;&#x987B;&#x5305;&#x542B; Host &#x5B57;&#x6BB5;&#x4FE1;&#x606F;&#xFF1B;</li>
<li>&#x8BF7;&#x6C42;&#x5FC5;&#x987B;&#x5305;&#x542B; Upgrade&#x5B57;&#x6BB5;&#x4FE1;&#x606F;&#xFF0C;&#x503C;&#x5FC5;&#x987B;&#x4E3A; websocket&#xFF1B;</li>
<li>&#x8BF7;&#x6C42;&#x5FC5;&#x987B;&#x5305;&#x542B; Connection &#x5B57;&#x6BB5;&#x4FE1;&#x606F;&#xFF0C;&#x503C;&#x5FC5;&#x987B;&#x4E3A; Upgrade&#xFF1B;</li>
<li><strong>&#x8BF7;&#x6C42;&#x5FC5;&#x987B;&#x5305;&#x542B; Sec-WebSocket-Key &#x5B57;&#x6BB5;&#xFF0C;&#x8BE5;&#x5B57;&#x6BB5;&#x503C;&#x662F;&#x5BA2;&#x6237;&#x7AEF;&#x7684;&#x6807;&#x8BC6;&#x7F16;&#x7801;&#x6210; base64 &#x683C;&#x5F0F;</strong>&#xFF1B;</li>
<li>&#x8BF7;&#x6C42;&#x5FC5;&#x987B;&#x5305;&#x542B; Sec-WebSocket-Version &#x5B57;&#x6BB5;&#x4FE1;&#x606F;&#xFF0C;&#x503C;&#x5FC5;&#x987B;&#x4E3A; 13&#xFF1B;</li>
<li>&#x8BF7;&#x6C42;&#x5FC5;&#x987B;&#x5305;&#x542B; Origin &#x5B57;&#x6BB5;&#xFF1B;</li>
<li>&#x8BF7;&#x6C42;&#x53EF;&#x80FD;&#x5305;&#x542B; Sec-WebSocket-Protocol &#x5B57;&#x6BB5;&#xFF0C;&#x89C4;&#x5B9A;&#x5B50;&#x534F;&#x8BAE;&#xFF1B;</li>
<li>&#x8BF7;&#x6C42;&#x53EF;&#x80FD;&#x5305;&#x542B; Sec-WebSocket-Extensions&#x5B57;&#x6BB5;&#x89C4;&#x5B9A;&#x534F;&#x8BAE;&#x6269;&#x5C55;&#xFF1B;</li>
<li>&#x8BF7;&#x6C42;&#x53EF;&#x80FD;&#x5305;&#x542B;&#x5176;&#x4ED6;&#x5B57;&#x6BB5;&#xFF0C;&#x5982; cookie &#x7B49;&#x3002;</li>
</ul>
<p>&#x5BF9;&#x7AEF;&#x6536;&#x5230;&#x8BE5;&#x6570;&#x636E;&#x5305;&#x540E;&#x5982;&#x679C;&#x652F;&#x6301; WebSocket &#x534F;&#x8BAE;&#xFF0C;&#x4F1A;&#x56DE;&#x590D;&#x4E00;&#x4E2A; http &#x683C;&#x5F0F;&#x7684;&#x5E94;&#x7B54;&#xFF0C;&#x8FD9;&#x4E2A;&#x5E94;&#x7B54;&#x62A5;&#x6587;&#x7684;&#x683C;&#x5F0F;&#x5927;&#x81F4;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre class="language-"><code>HTTP/1.1 101 Switching Protocols\r\n
Upgrade: websocket\r\n
Connection: Upgrade\r\n
Sec-WebSocket-Accept: 5wC5L6joP6tl31zpj9OlCNv9Jy4=\r\n
\r\n
</code></pre><p>&#x4E0A;&#x9762;&#x5217;&#x51FA;&#x4E86;&#x5E94;&#x7B54;&#x62A5;&#x6587;&#x4E2D;&#x5FC5;&#x987B;&#x5305;&#x542B;&#x7684;&#x51E0;&#x4E2A;&#x5B57;&#x6BB5;&#x548C;&#x5BF9;&#x5E94;&#x7684;&#x503C;&#xFF0C;&#x5373; <strong>Upgrade</strong>&#x3001;<strong>Connection</strong>&#x3001;<strong>Sec-WebSocket-Accept</strong>&#xFF0C;&#x6CE8;&#x610F;&#xFF1A;&#x7B2C;&#x4E00;&#x884C;&#x5FC5;&#x987B;&#x662F; <strong>HTTP/1.1 101 Switching Protocols\r\n</strong>&#x3002;</p>
<p>&#x5BF9;&#x4E8E;&#x5B57;&#x6BB5; <strong>Sec-WebSocket-Accept</strong> &#x5B57;&#x6BB5;&#xFF0C;&#x5176;&#x503C;&#x662F;&#x6839;&#x636E;&#x5BF9;&#x7AEF;&#x4F20;&#x8FC7;&#x6765;&#x7684; <strong>Sec-WebSocket-Key</strong> &#x7684;&#x503C;&#x7ECF;&#x8FC7;&#x4E00;&#x5B9A;&#x7684;&#x7B97;&#x6CD5;&#x8BA1;&#x7B97;&#x51FA;&#x6765;&#x7684;&#xFF0C;&#x8FD9;&#x6837;&#x5E94;&#x7B54;&#x7684;&#x53CC;&#x65B9;&#x624D;&#x80FD;&#x5339;&#x914D;&#x3002;&#x7B97;&#x6CD5;&#x5982;&#x4E0B;&#xFF1A;</p>
<ol>
<li>&#x5C06; Sec-WebSocket-Key &#x503C;&#x4E0E;&#x56FA;&#x5B9A;&#x5B57;&#x7B26;&#x4E32;&#x201C;258EAFA5-E914-47DA-95CA-C5AB0DC85B11&#x201D; &#x8FDB;&#x884C;&#x62FC;&#x63A5;&#xFF1B;</li>
<li>&#x5C06;&#x62FC;&#x63A5;&#x540E;&#x7684;&#x5B57;&#x7B26;&#x4E32;&#x8FDB;&#x884C; SHA-1 &#x5904;&#x7406;&#xFF0C;&#x7136;&#x540E;&#x5C06;&#x7ED3;&#x679C;&#x518D;&#x8FDB;&#x884C; base64 &#x7F16;&#x7801;&#x3002;</li>
</ol>
<p>&#x7B97;&#x6CD5;&#x516C;&#x5F0F;&#xFF1A;</p>
<pre class="language-"><code>mask  = &quot;258EAFA5-E914-47DA-95CA-C5AB0DC85B11&quot;;  // &#x8FD9;&#x662F;&#x7B97;&#x6CD5;&#x4E2D;&#x8981;&#x7528;&#x5230;&#x7684;&#x56FA;&#x5B9A;&#x5B57;&#x7B26;&#x4E32;
accept = base64( sha1( Sec-WebSocket-Key + mask ) );
</code></pre><p>&#x6211;&#x7528; C++ &#x5B9E;&#x73B0;&#x4E86;&#x8BE5;&#x7B97;&#x6CD5;&#xFF1A;</p>
<pre class="language-"><code>namespace uWS {

struct WebSocketHandshake {
    template <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>int</span> <span class="token attr-name">N,</span> <span class="token attr-name">typename</span> <span class="token attr-name">T</span><span class="token punctuation">&gt;</span></span>
    struct static_for {
        void operator()(uint32_t *a, uint32_t *b) {
            static_for<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>N</span> <span class="token attr-name">-</span> <span class="token attr-name">1,</span> <span class="token attr-name">T</span><span class="token punctuation">&gt;</span></span>()(a, b);
            T::template f<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>N</span> <span class="token attr-name">-</span> <span class="token attr-name">1</span><span class="token punctuation">&gt;</span></span>(a, b);
        }
    };

    template <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>typename</span> <span class="token attr-name">T</span><span class="token punctuation">&gt;</span></span>
    struct static_for&lt;0, T&gt; {
        void operator()(uint32_t *a, uint32_t *hash) {}
    };

    template <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>int</span> <span class="token attr-name">state</span><span class="token punctuation">&gt;</span></span>
    struct Sha1Loop {
        static inline uint32_t rol(uint32_t value, size_t bits) {return (value &lt;&lt; bits) | (value &gt;&gt; (32 - bits));}
        static inline uint32_t blk(uint32_t b[16], size_t i) {
            return rol(b[(i + 13) &amp; 15] ^ b[(i + 8) &amp; 15] ^ b[(i + 2) &amp; 15] ^ b[i], 1);
        }

        template <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>int</span> <span class="token attr-name">i</span><span class="token punctuation">&gt;</span></span>
        static inline void f(uint32_t *a, uint32_t *b) {
            switch (state) {
            case 1:
                a[i % 5] += ((a[(3 + i) % 5] &amp; (a[(2 + i) % 5] ^ a[(1 + i) % 5])) ^ a[(1 + i) % 5]) + b[i] + 0x5a827999 + rol(a[(4 + i) % 5], 5);
                a[(3 + i) % 5] = rol(a[(3 + i) % 5], 30);
                break;
            case 2:
                b[i] = blk(b, i);
                a[(1 + i) % 5] += ((a[(4 + i) % 5] &amp; (a[(3 + i) % 5] ^ a[(2 + i) % 5])) ^ a[(2 + i) % 5]) + b[i] + 0x5a827999 + rol(a[(5 + i) % 5], 5);
                a[(4 + i) % 5] = rol(a[(4 + i) % 5], 30);
                break;
            case 3:
                b[(i + 4) % 16] = blk(b, (i + 4) % 16);
                a[i % 5] += (a[(3 + i) % 5] ^ a[(2 + i) % 5] ^ a[(1 + i) % 5]) + b[(i + 4) % 16] + 0x6ed9eba1 + rol(a[(4 + i) % 5], 5);
                a[(3 + i) % 5] = rol(a[(3 + i) % 5], 30);
                break;
            case 4:
                b[(i + 8) % 16] = blk(b, (i + 8) % 16);
                a[i % 5] += (((a[(3 + i) % 5] | a[(2 + i) % 5]) &amp; a[(1 + i) % 5]) | (a[(3 + i) % 5] &amp; a[(2 + i) % 5])) + b[(i + 8) % 16] + 0x8f1bbcdc + rol(a[(4 + i) % 5], 5);
                a[(3 + i) % 5] = rol(a[(3 + i) % 5], 30);
                break;
            case 5:
                b[(i + 12) % 16] = blk(b, (i + 12) % 16);
                a[i % 5] += (a[(3 + i) % 5] ^ a[(2 + i) % 5] ^ a[(1 + i) % 5]) + b[(i + 12) % 16] + 0xca62c1d6 + rol(a[(4 + i) % 5], 5);
                a[(3 + i) % 5] = rol(a[(3 + i) % 5], 30);
                break;
            case 6:
                b[i] += a[4 - i];
            }
        }
    };

    /**
     * sha1 &#x51FD;&#x6570;&#x7684;&#x5B9E;&#x73B0;
     */
    static inline void sha1(uint32_t hash[5], uint32_t b[16]) {
        uint32_t a[5] = {hash[4], hash[3], hash[2], hash[1], hash[0]};
        static_for&lt;16, Sha1Loop&lt;1&gt;&gt;()(a, b);
        static_for&lt;4, Sha1Loop&lt;2&gt;&gt;()(a, b);
        static_for&lt;20, Sha1Loop&lt;3&gt;&gt;()(a, b);
        static_for&lt;20, Sha1Loop&lt;4&gt;&gt;()(a, b);
        static_for&lt;20, Sha1Loop&lt;5&gt;&gt;()(a, b);
        static_for&lt;5, Sha1Loop&lt;6&gt;&gt;()(a, hash);
    }

    /**
     * base64 &#x7F16;&#x7801;&#x51FD;&#x6570;
     */
    static inline void base64(unsigned char *src, char *dst) {
        const char *b64 = &quot;ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/&quot;;
        for (int i = 0; i &lt; 18; i += 3) {
            *dst++ = b64[(src[i] &gt;&gt; 2) &amp; 63];
            *dst++ = b64[((src[i] &amp; 3) &lt;&lt; 4) | ((src[i + 1] &amp; 240) &gt;&gt; 4)];
            *dst++ = b64[((src[i + 1] &amp; 15) &lt;&lt; 2) | ((src[i + 2] &amp; 192) &gt;&gt; 6)];
            *dst++ = b64[src[i + 2] &amp; 63];
        }
        *dst++ = b64[(src[18] &gt;&gt; 2) &amp; 63];
        *dst++ = b64[((src[18] &amp; 3) &lt;&lt; 4) | ((src[19] &amp; 240) &gt;&gt; 4)];
        *dst++ = b64[((src[19] &amp; 15) &lt;&lt; 2)];
        *dst++ = &apos;=&apos;;
    }

public:
    /** 
     * &#x751F;&#x6210; Sec-WebSocket-Accept &#x7B97;&#x6CD5;
     * @param input &#x5BF9;&#x7AEF;&#x4F20;&#x8FC7;&#x6765;&#x7684;Sec-WebSocket-Key&#x503C;
     * @param output &#x5B58;&#x653E;&#x751F;&#x6210;&#x7684; Sec-WebSocket-Accept &#x503C;
     */
    static inline void generate(const char input[24], char output[28]) {
        uint32_t b_output[5] = {
            0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0
        };
        uint32_t b_input[16] = {
            0, 0, 0, 0, 0, 0, 0x32353845, 0x41464135, 0x2d453931, 0x342d3437, 0x44412d39,
            0x3543412d, 0x43354142, 0x30444338, 0x35423131, 0x80000000
        };

        for (int i = 0; i &lt; 6; i++) {
            b_input[i] = (input[4 * i + 3] &amp; 0xff) | (input[4 * i + 2] &amp; 0xff) &lt;&lt; 8 | (input[4 * i + 1] &amp; 0xff) &lt;&lt; 16 | (input[4 * i + 0] &amp; 0xff) &lt;&lt; 24;
        }
        sha1(b_output, b_input);
        uint32_t last_b[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 480};
        sha1(b_output, last_b);
        for (int i = 0; i &lt; 5; i++) {
            uint32_t tmp = b_output[i];
            char *bytes = (char *) &amp;b_output[i];
            bytes[3] = tmp &amp; 0xff;
            bytes[2] = (tmp &gt;&gt; 8) &amp; 0xff;
            bytes[1] = (tmp &gt;&gt; 16) &amp; 0xff;
            bytes[0] = (tmp &gt;&gt; 24) &amp; 0xff;
        }
        base64((unsigned char *) b_output, output);
    }
};
</code></pre><p>&#x63E1;&#x624B;&#x5B8C;&#x6210;&#x4E4B;&#x540E;&#xFF0C;&#x901A;&#x4FE1;&#x53CC;&#x65B9;&#x5C31;&#x53EF;&#x4EE5;&#x4FDD;&#x6301;&#x8FDE;&#x63A5;&#x5E76;&#x76F8;&#x4E92;&#x53D1;&#x9001;&#x6570;&#x636E;&#x4E86;&#x3002;</p>
<h4 id="websocket-&#x534F;&#x8BAE;&#x683C;&#x5F0F;"><a name="websocket-&#x534F;&#x8BAE;&#x683C;&#x5F0F;" class="anchor-navigation-ex-anchor" href="#websocket-&#x534F;&#x8BAE;&#x683C;&#x5F0F;"><i class="fa fa-link" aria-hidden="true"></i></a>WebSocket &#x534F;&#x8BAE;&#x683C;&#x5F0F;</h4>
<p>WebSocket &#x534F;&#x8BAE;&#x683C;&#x5F0F;&#x7684; RFC &#x6587;&#x6863;&#x53EF;&#x4EE5;&#x53C2;&#x89C1;&#xFF1A;[]<a href="https://tools.ietf.org/html/rfc6455&#x3002;" target="_blank">https://tools.ietf.org/html/rfc6455&#x3002;</a></p>
<p>&#x5E38;&#x542C;&#x4EBA;&#x8BF4; WebSocket &#x534F;&#x8BAE;&#x662F;&#x57FA;&#x4E8E; http &#x534F;&#x8BAE;&#x7684;&#xFF0C;&#x56E0;&#x6B64;&#x6211;&#x5728;&#x521A;&#x63A5;&#x89E6; WebSocket &#x534F;&#x8BAE;&#x65F6;&#x603B;&#x4EE5;&#x4E3A;&#x6BCF;&#x4E2A; WebSocket &#x6570;&#x636E;&#x5305;&#x90FD;&#x662F; http &#x683C;&#x5F0F;&#xFF0C;&#x5176;&#x5B9E;&#x4E0D;&#x7136;&#xFF0C;WebSocket &#x534F;&#x8BAE;&#x9664;&#x4E86;&#x4E0A;&#x6587;&#x4E2D;&#x63D0;&#x5230;&#x7684;&#x8FD9;&#x6B21;&#x63E1;&#x624B;&#x8FC7;&#x7A0B;&#x4E2D;&#x4F7F;&#x7528;&#x7684;&#x6570;&#x636E;&#x683C;&#x5F0F;&#x662F; http &#x534F;&#x8BAE;&#x683C;&#x5F0F;&#xFF0C;&#x4E4B;&#x540E;&#x7684;&#x901A;&#x4FE1;&#x53CC;&#x65B9;&#x4F7F;&#x7528;&#x7684;&#x662F;&#x53E6;&#x5916;&#x4E00;&#x79CD;&#x81EA;&#x5B9A;&#x4E49;&#x683C;&#x5F0F;&#x3002;&#x6BCF;&#x4E00;&#x4E2A; WebSocket &#x6570;&#x636E;&#x5305;&#x6211;&#x4EEC;&#x79F0;&#x4E4B;&#x4E3A;&#x4E00;&#x4E2A; Frame&#xFF08;&#x5E27;&#xFF09;&#xFF0C;&#x5176;&#x683C;&#x5F0F;&#x56FE;&#x5982;&#x4E0B;&#xFF1A;</p>
<p><img src="../imgs/websocket1.webp" alt=""></p>
<p>&#x6211;&#x4EEC;&#x6765;&#x9010;&#x4E00;&#x4ECB;&#x7ECD;&#x4E00;&#x4E0B;&#x4E0A;&#x6587;&#x4E2D;&#x5404;&#x5B57;&#x6BB5;&#x7684;&#x542B;&#x4E49;&#xFF1A;</p>
<p><strong>&#x7B2C;&#x4E00;&#x4E2A;&#x5B57;&#x8282;</strong>&#x5185;&#x5BB9;&#xFF1A;</p>
<ul>
<li><p><strong>FIN</strong> &#x6807;&#x5FD7;&#xFF0C;&#x5360;&#x7B2C;&#x4E00;&#x4E2A;&#x5B57;&#x8282;&#x4E2D;&#x7684;&#x7B2C;&#x4E00;&#x4F4D;&#xFF08;bit&#xFF09;&#xFF0C;&#x5373;&#x4E00;&#x5B57;&#x8282;&#x4E2D;&#x7684;&#x6700;&#x9AD8;&#x4F4D;&#xFF08;&#x4E00;&#x5B57;&#x8282;&#x7B49;&#x4E8E; 8 &#x4F4D;&#xFF09;&#xFF0C;&#x8BE5;&#x6807;&#x5FD7;&#x7F6E; 0 &#x65F6;&#x8868;&#x793A;&#x5F53;&#x524D;&#x5305;&#x672A;&#x7ED3;&#x675F;&#x540E;&#x7EED;&#x6709;&#x8BE5;&#x5305;&#x7684;&#x5206;&#x7247;&#xFF0C;&#x7F6E; 1 &#x65F6;&#x8868;&#x793A;&#x5F53;&#x524D;&#x5305;&#x5DF2;&#x7ED3;&#x675F;&#x540E;&#x7EED;&#x65E0;&#x8BE5;&#x5305;&#x7684;&#x5206;&#x7247;&#x3002;&#x6211;&#x4EEC;&#x5728;&#x89E3;&#x5305;&#x65F6;&#xFF0C;&#x5982;&#x679C;&#x53D1;&#x73B0;&#x8BE5;&#x6807;&#x5FD7;&#x4E3A; 1&#xFF0C;&#x5219;&#x9700;&#x8981;&#x5C06;&#x5F53;&#x524D;&#x5305;&#x7684;&#x201C;&#x5305;&#x4F53;&#x201D;&#x6570;&#x636E;&#xFF08;&#x5373;&#x56FE;&#x4E2D; <strong>Payload Data</strong>&#xFF09;&#x7F13;&#x5B58;&#x8D77;&#x6765;&#xFF0C;&#x4E0E;&#x540E;&#x7EED;&#x5305;&#x5206;&#x7247;&#x7EC4;&#x88C5;&#x5728;&#x4E00;&#x8D77;&#xFF0C;&#x624D;&#x662F;&#x4E00;&#x4E2A;&#x5B8C;&#x6574;&#x7684;&#x5305;&#x4F53;&#x6570;&#x636E;&#x3002;</p>
</li>
<li><p><strong>RSV1</strong>&#x3001;<strong>RSV2</strong>&#x3001;<strong>RSV3</strong> &#x6BCF;&#x4E2A;&#x5360;&#x4E00;&#x4F4D;&#xFF0C;&#x4E00;&#x5171;&#x4E09;&#x4F4D;&#xFF0C;&#x8FD9;&#x4E09;&#x4E2A;&#x4F4D;&#x662F;&#x4FDD;&#x7559;&#x5B57;&#x6BB5;&#xFF08;&#x9ED8;&#x8BA4;&#x90FD;&#x662F; 0&#xFF09;&#xFF0C;&#x4F60;&#x53EF;&#x4EE5;&#x7528;&#x5B83;&#x4EEC;&#x4F5C;&#x4E3A;&#x901A;&#x4FE1;&#x7684;&#x53CC;&#x65B9;&#x534F;&#x5546;&#x597D;&#x7684;&#x4E00;&#x4E9B;&#x7279;&#x6B8A;&#x6807;&#x5FD7;&#xFF1B;</p>
</li>
<li><p><strong>opCode</strong> &#x64CD;&#x4F5C;&#x7C7B;&#x578B;&#xFF0C;&#x5360;&#x56DB;&#x4F4D;&#xFF0C;&#x76EE;&#x524D;&#x64CD;&#x4F5C;&#x7C7B;&#x578B;&#x53CA;&#x5176;&#x53D6;&#x503C;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre class="language-"><code>// 4 bits
enum OpCode
{
    //&#x8868;&#x793A;&#x540E;&#x7EED;&#x8FD8;&#x6709;&#x65B0;&#x7684; Frame
    CONTINUATION_FRAME  = 0x0,
    //&#x5305;&#x4F53;&#x662F;&#x6587;&#x672C;&#x7C7B;&#x578B;&#x7684;Frame
    TEXT_FRAME          = 0x1,
    //&#x5305;&#x4F53;&#x662F;&#x4E8C;&#x8FDB;&#x5236;&#x7C7B;&#x578B;&#x7684; Frame
    BINARY_FRAME        = 0x2,
    //&#x4FDD;&#x7559;&#x503C;
    RESERVED1           = 0x3,
    RESERVED2           = 0x4,
    RESERVED3           = 0x5,
    RESERVED4           = 0x6,
    RESERVED5           = 0x7,
    //&#x5EFA;&#x8BAE;&#x5BF9;&#x7AEF;&#x5173;&#x95ED;&#x7684; Frame
    CLOSE               = 0x8,
    //&#x5FC3;&#x8DF3;&#x5305;&#x4E2D;&#x7684; ping Frame
    PING                = 0x9,
    //&#x5FC3;&#x8DF3;&#x5305;&#x4E2D;&#x7684; pong Frame
    PONG                = 0xA,
    //&#x4FDD;&#x7559;&#x503C;
    RESERVED6           = 0xB,
    RESERVED7           = 0xC,
    RESERVED8           = 0xD,
    RESERVED9           = 0xE,
    RESERVED10          = 0xF
};
</code></pre></li>
</ul>
<p><strong>&#x7B2C;&#x4E8C;&#x4E2A;&#x5B57;&#x8282;</strong>&#x5185;&#x5BB9;&#xFF1A;</p>
<ul>
<li><p><strong>mask</strong> &#x6807;&#x5FD7;&#xFF0C;&#x5360;&#x4E00;&#x4F4D;&#xFF0C;&#x8BE5;&#x6807;&#x5FD7;&#x4E3A; 1 &#x65F6;&#xFF0C;&#x8868;&#x660E;&#x8BE5; Frame &#x5728;&#x5305;&#x4F53;&#x957F;&#x5EA6;&#x5B57;&#x6BB5;&#x540E;&#x9762;&#x643A;&#x5E26; 4 &#x4E2A;&#x5B57;&#x8282;&#x7684; <strong>masking-key</strong> &#x4FE1;&#x606F;&#xFF0C;&#x4E3A; 0 &#x65F6;&#x5219;&#x6CA1;&#x6709; <strong>masking-key</strong> &#x4FE1;&#x606F;&#x3002;<strong>masking-key</strong> &#x4FE1;&#x606F;&#x4E0B;&#x6587;&#x4F1A;&#x4ECB;&#x7ECD;&#x3002;</p>
</li>
<li><p><strong>Payload len</strong>&#xFF0C;&#x5360;&#x4E03;&#x4F4D;&#xFF0C;&#x8BE5;&#x5B57;&#x6BB5;&#x8868;&#x793A;&#x5305;&#x4F53;&#x7684;&#x957F;&#x5EA6;&#x4FE1;&#x606F;&#x3002;&#x7531;&#x4E8E; <strong>Payload length</strong> &#x503C;&#x4F7F;&#x7528;&#x4E86;&#x4E00;&#x4E2A;&#x5B57;&#x8282;&#x7684;&#x4F4E;&#x4E03;&#x4F4D;&#xFF08;<strong>7 bit</strong>&#xFF09;&#xFF0C;&#x56E0;&#x6B64;&#x5176;&#x80FD;&#x8868;&#x793A;&#x7684;&#x957F;&#x5EA6;&#x8303;&#x56F4;&#x662F; 0 ~ 127&#xFF0C;&#x5176;&#x4E2D; <strong>126</strong> &#x548C; <strong>127</strong> &#x88AB;&#x5F53;&#x505A;&#x7279;&#x6B8A;&#x6807;&#x5FD7;&#x4F7F;&#x7528;&#x3002;</p>
<p>&#x5F53;&#x8BE5;&#x5B57;&#x6BB5;&#x503C;&#x662F; <strong>0~125</strong> &#x65F6;&#xFF0C;&#x8868;&#x793A;&#x8DDF;&#x5728; masking-key &#x5B57;&#x6BB5;&#x540E;&#x9762;&#x7684;&#x5C31;&#x662F;&#x5305;&#x4F53;&#x5185;&#x5BB9;&#x957F;&#x5EA6;&#xFF1B;&#x5F53;&#x8BE5;&#x503C;&#x662F; <strong>126</strong> &#x65F6;&#xFF0C;&#x63A5;&#x4E0B;&#x6765;&#x7684; <strong>2</strong> &#x4E2A;&#x5B57;&#x8282;&#x5185;&#x5BB9;&#x8868;&#x793A;&#x8DDF;&#x5728; masking-key &#x5B57;&#x6BB5;&#x540E;&#x9762;&#x7684;&#x5305;&#x4F53;&#x5185;&#x5BB9;&#x7684;&#x957F;&#x5EA6;&#xFF08;&#x5373;&#x56FE;&#x4E2D;&#x7684; <strong>Extended Payload Length</strong>&#xFF09;&#x3002;&#x7531;&#x4E8E; 2 &#x4E2A;&#x5B57;&#x8282;&#x6700;&#x5927;&#x8868;&#x793A;&#x7684;&#x65E0;&#x7B26;&#x53F7;&#x6574;&#x6570;&#x662F; <strong>0xFFFF</strong>&#xFF08;&#x5341;&#x8FDB;&#x5236;&#x662F; 65535&#xFF0C; &#x7F16;&#x8BD1;&#x5668;&#x63D0;&#x4F9B;&#x4E86;&#x4E00;&#x4E2A;&#x5B8F; <strong>UINT16_MAX</strong> &#x6765;&#x8868;&#x793A;&#x8FD9;&#x4E2A;&#x503C;&#xFF09;&#x3002;&#x5982;&#x679C;&#x5305;&#x4F53;&#x957F;&#x5EA6;&#x8D85;&#x8FC7; 65535&#xFF0C;&#x5305;&#x957F;&#x5EA6;&#x5C31;&#x8BB0;&#x5F55;&#x4E0D;&#x4E0B;&#x4E86;&#xFF0C;&#x6B64;&#x65F6;&#x5E94;&#x8BE5;&#x5C06; <strong>Payload length</strong> &#x8BBE;&#x7F6E;&#x4E3A; 127&#xFF0C;&#x4EE5;&#x4F7F;&#x7528;&#x66F4;&#x591A;&#x7684;&#x5B57;&#x8282;&#x6570;&#x6765;&#x8868;&#x793A;&#x5305;&#x4F53;&#x957F;&#x5EA6;&#x3002;</p>
<p>&#x5F53; <strong>Payload length</strong> &#x662F; <strong>127</strong> &#x65F6;&#xFF0C;&#x63A5;&#x4E0B;&#x6765;&#x5219;&#x7528; <strong>8</strong> &#x4E2A;&#x5B57;&#x8282;&#x5185;&#x5BB9;&#x8868;&#x793A;&#x8DDF;&#x5728; masking-key &#x5B57;&#x6BB5;&#x540E;&#x9762;&#x7684;&#x5305;&#x4F53;&#x5185;&#x5BB9;&#x7684;&#x957F;&#x5EA6;&#xFF08;<strong>Extended Payload Length</strong>&#xFF09;&#x3002;</p>
</li>
</ul>
<blockquote>
<p>&#x603B;&#x7ED3;&#x8D77;&#x6765;&#xFF0C;Payload length = 0 ~ 125&#xFF0C;<strong>Extended Payload Length</strong> &#x4E0D;&#x5B58;&#x5728;&#xFF0C; 0 &#x5B57;&#x8282;&#xFF1B;Payload length = 126, Extended Payload Length &#x5360; 2 &#x5B57;&#x8282;&#xFF1B;Payload length = 127 &#x65F6;&#xFF0C;Extended Payload Length &#x5360; 8 &#x5B57;&#x8282;&#x3002;</p>
<p>&#x53E6;&#x5916;&#x9700;&#x8981;&#x6CE8;&#x610F;&#x7684;&#x662F;&#xFF0C;&#x5F53; Payload length = 125 &#x6216; 126 &#x65F6;&#x63A5;&#x4E0B;&#x6765;&#x5B58;&#x50A8;&#x5B9E;&#x9645;&#x5305;&#x957F;&#x7684; 2 &#x5B57;&#x8282;&#x6216; 8 &#x5B57;&#x8282;&#xFF0C;&#x5176;&#x503C;&#x5FC5;&#x987B;&#x8F6C;&#x6362;&#x4E3A;&#x7F51;&#x7EDC;&#x5B57;&#x8282;&#x5E8F;&#xFF08;Big Endian&#xFF09;&#x3002;</p>
</blockquote>
<ul>
<li><strong>Masking-key</strong> &#xFF0C;&#x5982;&#x679C;&#x524D;&#x9762;&#x7684; mask &#x6807;&#x5FD7;&#x8BBE;&#x7F6E;&#x6210; 1&#xFF0C;&#x5219;&#x8BE5;&#x5B57;&#x6BB5;&#x5B58;&#x5728;&#xFF0C;&#x5360; 4 &#x4E2A;&#x5B57;&#x8282;&#xFF1B;&#x53CD;&#x4E4B;&#xFF0C;&#x5219; Frame &#x4E2D;&#x4E0D;&#x5B58;&#x5728;&#x5B58;&#x50A8; <strong>masking-key</strong> &#x5B57;&#x6BB5;&#x7684;&#x5B57;&#x8282;&#x3002;</li>
</ul>
<blockquote>
<p>&#x7F51;&#x7EDC;&#x4E0A;&#x4E00;&#x4E9B;&#x8D44;&#x6599;&#x8BF4;&#xFF0C;<strong>&#x5BA2;&#x6237;&#x7AEF;&#xFF08;&#x4E3B;&#x52A8;&#x53D1;&#x8D77;&#x63E1;&#x624B;&#x8BF7;&#x6C42;&#x7684;&#x4E00;&#x65B9;&#xFF09;&#x7ED9;&#x670D;&#x52A1;&#x5668;&#xFF08;&#x88AB;&#x52A8;&#x63A5;&#x53D7;&#x63E1;&#x624B;&#x7684;&#x53E6;&#x4E00;&#x65B9;&#xFF09;&#x53D1;&#x7684; frame &#x4FE1;&#x606F;&#xFF08;&#x5305;&#x4FE1;&#x606F;&#xFF09;&#xFF0C;mask &#x6807;&#x5FD7;&#x5FC5;&#x987B;&#x662F; 1</strong>&#xFF0C;&#x800C;&#x670D;&#x52A1;&#x5668;&#x7ED9;&#x5BA2;&#x6237;&#x7AEF;&#x53D1;&#x9001;&#x7684; frame &#x4FE1;&#x606F;&#x4E2D; mask &#x6807;&#x5FD7;&#x662F; 0&#x3002;&#x56E0;&#x6B64;&#xFF0C;&#x5BA2;&#x6237;&#x7AEF;&#x53D1;&#x7ED9;&#x670D;&#x52A1;&#x5668;&#x7AEF;&#x7684;&#x6570;&#x636E;&#x5E27;&#x4E2D;&#x5B58;&#x5728; 4 &#x5B57;&#x8282;&#x7684; masking-key&#xFF0C;&#x800C;&#x670D;&#x52A1;&#x5668;&#x7AEF;&#x53D1;&#x7ED9;&#x5BA2;&#x6237;&#x7AEF;&#x7684;&#x6570;&#x636E;&#x5E27;&#x4E2D;&#x4E0D;&#x5B58;&#x5728; masking-key &#x4FE1;&#x606F;&#x3002;</p>
<p>&#x6211;&#x5728; Websocket &#x534F;&#x8BAE;&#x7684; RFC &#x6587;&#x6863;&#x4E2D;&#x5E76;&#x6CA1;&#x6709;&#x770B;&#x5230;&#x6709;&#x8FD9;&#x79CD;&#x5F3A;&#x884C;&#x89C4;&#x5B9A;&#xFF0C;&#x53E6;&#x5916;&#x5728;&#x7814;&#x7A76;&#x4E86;&#x4E00;&#x4E9B; websocket &#x5E93;&#x7684;&#x5B9E;&#x73B0;&#x540E;&#x53D1;&#x73B0;&#xFF0C;&#x6B64;&#x7ED3;&#x8BBA;&#x5E76;&#x4E0D;&#x4E00;&#x5B9A;&#x6210;&#x7ACB;&#xFF0C;&#x5BA2;&#x6237;&#x7AEF;&#x53D1;&#x9001;&#x7684;&#x6570;&#x636E;&#x4E5F;&#x53EF;&#x80FD;&#x6CA1;&#x6709;&#x8BBE;&#x7F6E; mask &#x6807;&#x5FD7;&#x3002;</p>
</blockquote>
<p>&#x5982;&#x679C;&#x5B58;&#x5728; <strong>masking-key</strong> &#x4FE1;&#x606F;&#xFF0C;&#x5219;&#x6570;&#x636E;&#x5E27;&#x4E2D;&#x7684;&#x6570;&#x636E;&#xFF08;&#x56FE;&#x4E2D; Payload Data&#xFF09;&#x90FD;&#x662F;&#x7ECF;&#x8FC7;&#x4E0E; masking-key &#x8FDB;&#x884C;&#x8FD0;&#x7B97;&#x540E;&#x7684;&#x5185;&#x5BB9;&#x3002;&#x65E0;&#x8BBA;&#x662F;&#x5C06;&#x539F;&#x59CB;&#x6570;&#x636E;&#x4E0E; masking-key &#x8FD0;&#x7B97;&#x540E;&#x5F97;&#x5230;&#x4F20;&#x8F93;&#x7684;&#x6570;&#x636E;&#xFF0C;&#x8FD8;&#x662F;&#x5C06;&#x4F20;&#x8F93;&#x7684;&#x6570;&#x636E;&#x8FD8;&#x539F;&#x6210;&#x539F;&#x59CB;&#x6570;&#x636E;&#xFF0C;&#x5176;&#x7B97;&#x6CD5;&#x90FD;&#x662F;&#x4E00;&#x6837;&#x7684;&#x3002;&#x7B97;&#x6CD5;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre class="language-"><code>&#x5047;&#x8BBE;&#xFF1A;
original-octet-i&#xFF1A;&#x4E3A;&#x539F;&#x59CB;&#x6570;&#x636E;&#x7684;&#x7B2C; i &#x5B57;&#x8282;&#x3002;
transformed-octet-i&#xFF1A;&#x4E3A;&#x8F6C;&#x6362;&#x540E;&#x7684;&#x6570;&#x636E;&#x7684;&#x7B2C; i &#x5B57;&#x8282;&#x3002;
j&#xFF1A;&#x4E3A;i mod 4&#x7684;&#x7ED3;&#x679C;&#x3002;
masking-key-octet-j&#xFF1A;&#x4E3A; mask key &#x7B2C; j &#x5B57;&#x8282;&#x3002;
</code></pre><p>&#x7B97;&#x6CD5;&#x63CF;&#x8FF0;&#x4E3A;&#xFF1A;original-octet-i &#x4E0E; masking-key-octet-j &#x5F02;&#x6216;&#x540E;&#xFF0C;&#x5F97;&#x5230; transformed-octet-i&#x3002;</p>
<pre class="language-"><code>j  = i MOD 4
transformed-octet-i = original-octet-i XOR masking-key-octet-j
</code></pre><p>&#x6211;&#x7528; C++ &#x5B9E;&#x73B0;&#x4E86;&#x8BE5;&#x7B97;&#x6CD5;&#xFF1A;</p>
<pre class="language-"><code>/**
 * @param src &#x51FD;&#x6570;&#x8C03;&#x7528;&#x524D;&#x662F;&#x539F;&#x59CB;&#x9700;&#x8981;&#x4F20;&#x8F93;&#x7684;&#x6570;&#x636E;&#xFF0C;&#x51FD;&#x6570;&#x8C03;&#x7528;&#x540E;&#x662F;mask&#x6216;&#x8005;unmask&#x540E;&#x7684;&#x5185;&#x5BB9;
 * @param maskingKey &#x56DB;&#x5B57;&#x8282;
 */
void maskAndUnmaskData(std::string&amp; src, const char* maskingKey)
{
    char j;
    for (size_t n = 0; n &lt; src.length(); ++n)
    {
        j = n % 4;
        src[n] = src[n] ^ maskingKey[j];
    }
}
</code></pre><p>&#x4F7F;&#x7528;&#x4E0A;&#x9762;&#x7684;&#x63CF;&#x8FF0;&#x53EF;&#x80FD;&#x8FD8;&#x4E0D;&#x662F;&#x592A;&#x6E05;&#x695A;&#xFF0C;&#x6211;&#x4EEC;&#x4E3E;&#x4E2A;&#x4F8B;&#x5B50;&#xFF0C;&#x5047;&#x8BBE;&#x6709;&#x4E00;&#x4E2A;&#x5BA2;&#x6237;&#x7AEF;&#x53D1;&#x9001;&#x7ED9;&#x670D;&#x52A1;&#x5668;&#x7684;&#x6570;&#x636E;&#x5305;&#xFF0C;&#x90A3;&#x4E48; mask = 1&#xFF0C;&#x5373;&#x5B58;&#x5728; 4 &#x5B57;&#x8282;&#x7684; masking-key&#xFF0C;&#x5F53;&#x5305;&#x4F53;&#x6570;&#x636E;&#x957F;&#x5EA6;&#x5728; 0 ~ 125 &#x4E4B;&#x95F4;&#x65F6;&#xFF0C;&#x8BE5;&#x5305;&#x7684;&#x7ED3;&#x6784;&#xFF1A;</p>
<pre class="language-"><code>&#x7B2C; 1 &#x4E2A;&#x5B57;&#x8282;&#x7B2C; 0 &#x4F4D;    =&gt; FIN
&#x7B2C; 1 &#x4E2A;&#x5B57;&#x8282;&#x7B2C; 1 ~ 3&#x4F4D; =&gt; RSV1 + RSV2 + RSV3
&#x7B2C; 1 &#x4E2A;&#x5B57;&#x8282;&#x7B2C; 4 ~ 7&#x4F4D; =&gt; opcode
&#x7B2C; 2 &#x4E2A;&#x5B57;&#x8282;&#x7B2C; 0 &#x4F4D;    =&gt; mask(&#x7B49;&#x4E8E; 1)
&#x7B2C; 2 &#x4E2A;&#x5B57;&#x8282;&#x7B2C; 1 ~ 7&#x4F4D; =&gt; &#x5305;&#x4F53;&#x957F;&#x5EA6;
&#x7B2C; 3 ~ 6 &#x4E2A;&#x5B57;&#x8282;      =&gt;  masking-key
&#x7B2C; 7 &#x4E2A;&#x5B57;&#x8282;&#x53CA;&#x4EE5;&#x540E;     =&gt;  &#x5305;&#x4F53;&#x5185;&#x5BB9;
</code></pre><p>&#x8FD9;&#x79CD;&#x60C5;&#x5F62;&#xFF0C;&#x5305;&#x5934;&#x603B;&#x5171; 6 &#x4E2A;&#x5B57;&#x8282;&#x3002;</p>
<p>&#x5F53;&#x5305;&#x4F53;&#x6570;&#x636E;&#x957F;&#x5EA6;&#x5927;&#x4E8E;125 &#x4E14;&#x5C0F;&#x4E8E;&#x7B49;&#x4E8E; UINT16_MAX &#x65F6;&#xFF0C;&#x8BE5;&#x5305;&#x7684;&#x7ED3;&#x6784;&#xFF1A;</p>
<pre class="language-"><code>&#x7B2C; 1 &#x4E2A;&#x5B57;&#x8282;&#x7B2C; 0 &#x4F4D;    =&gt; FIN
&#x7B2C; 1 &#x4E2A;&#x5B57;&#x8282;&#x7B2C; 1 ~ 3&#x4F4D; =&gt; RSV1 + RSV2 + RSV3
&#x7B2C; 1 &#x4E2A;&#x5B57;&#x8282;&#x7B2C; 4 ~ 7&#x4F4D; =&gt; opcode
&#x7B2C; 2 &#x4E2A;&#x5B57;&#x8282;&#x7B2C; 0 &#x4F4D;    =&gt; mask(&#x7B49;&#x4E8E; 1)
&#x7B2C; 2 &#x4E2A;&#x5B57;&#x8282;&#x7B2C; 1 ~ 7&#x4F4D; =&gt; &#x5F00;&#x542F;&#x6269;&#x5C55;&#x5305;&#x5934;&#x957F;&#x5EA6;&#x6807;&#x5FD7;&#xFF0C;&#x503C;&#x4E3A; 126
&#x7B2C; 3 ~ 4 &#x4E2A;&#x5B57;&#x8282;      =&gt;  &#x5305;&#x5934;&#x957F;&#x5EA6;
&#x7B2C; 5 ~ 8 &#x4E2A;&#x5B57;&#x8282;      =&gt;  masking-key
&#x7B2C; 9 &#x4E2A;&#x5B57;&#x8282;&#x53CA;&#x4EE5;&#x540E;     =&gt;  &#x5305;&#x4F53;&#x5185;&#x5BB9;
</code></pre><p>&#x8FD9;&#x79CD;&#x60C5;&#x5F62;&#xFF0C;&#x5305;&#x5934;&#x603B;&#x5171; 8 &#x4E2A;&#x5B57;&#x8282;&#x3002;</p>
<p>&#x5F53;&#x5305;&#x4F53;&#x6570;&#x636E;&#x957F;&#x5EA6;&#x5927;&#x4E8E; UINT16_MAX &#x65F6;&#xFF0C;&#x8BE5;&#x5305;&#x7684;&#x7ED3;&#x6784;&#xFF1A;</p>
<pre class="language-"><code>&#x7B2C; 1 &#x4E2A;&#x5B57;&#x8282;&#x7B2C; 0 &#x4F4D;    =&gt; FIN
&#x7B2C; 1 &#x4E2A;&#x5B57;&#x8282;&#x7B2C; 1 ~ 3&#x4F4D; =&gt; RSV1 + RSV2 + RSV3
&#x7B2C; 1 &#x4E2A;&#x5B57;&#x8282;&#x7B2C; 4 ~ 7&#x4F4D; =&gt; opcode
&#x7B2C; 2 &#x4E2A;&#x5B57;&#x8282;&#x7B2C; 0 &#x4F4D;    =&gt; mask(&#x7B49;&#x4E8E; 1)
&#x7B2C; 2 &#x4E2A;&#x5B57;&#x8282;&#x7B2C; 1 ~ 7&#x4F4D; =&gt; &#x5F00;&#x542F;&#x6269;&#x5C55;&#x5305;&#x5934;&#x957F;&#x5EA6;&#x6807;&#x5FD7;&#xFF0C;&#x503C;&#x4E3A; 127
&#x7B2C; 3 ~ 10 &#x4E2A;&#x5B57;&#x8282;      =&gt;  &#x5305;&#x5934;&#x957F;&#x5EA6;
&#x7B2C; 11 ~ 14 &#x4E2A;&#x5B57;&#x8282;     =&gt;  masking-key
&#x7B2C; 15 &#x4E2A;&#x5B57;&#x8282;&#x53CA;&#x4EE5;&#x540E;     =&gt;  &#x5305;&#x4F53;&#x5185;&#x5BB9;
</code></pre><p>&#x8FD9;&#x79CD;&#x60C5;&#x5F62;&#xFF0C;&#x5305;&#x5934;&#x603B;&#x5171; 14 &#x4E2A;&#x5B57;&#x8282;&#x3002;&#x7531;&#x4E8E;&#x5B58;&#x50A8;&#x5305;&#x4F53;&#x957F;&#x5EA6;&#x4F7F;&#x7528; 8 &#x5B57;&#x8282;&#x5B58;&#x50A8;&#xFF08;&#x65E0;&#x7B26;&#x53F7;&#xFF09;&#xFF0C;&#x56E0;&#x6B64;&#x6700;&#x5927;&#x5305;&#x4F53;&#x957F;&#x5EA6;&#x662F; 0xFFFFFFFFFFFFFFFF&#xFF0C;&#x8FD9;&#x662F;&#x4E00;&#x4E2A;&#x975E;&#x5E38;&#x5927;&#x7684;&#x6570;&#x5B57;&#xFF0C;&#x4F46;&#x5B9E;&#x9645;&#x5F00;&#x53D1;&#x4E2D;&#xFF0C;&#x6211;&#x4EEC;&#x7528;&#x4E0D;&#x5230;&#x8FD9;&#x4E48;&#x957F;&#x7684;&#x5305;&#x4F53;&#xFF0C;&#x4E14;&#x5F53;&#x5305;&#x4F53;&#x8D85;&#x8FC7;&#x4E00;&#x5B9A;&#x503C;&#x65F6;&#xFF0C;&#x6211;&#x4EEC;&#x5C31;&#x5E94;&#x8BE5;&#x5206;&#x5305;&#xFF08;&#x5206;&#x7247;&#xFF09;&#x4E86;&#x3002;</p>
<p>&#x5206;&#x5305;&#x7684;&#x903B;&#x8F91;&#x7ECF;&#x8FC7;&#x524D;&#x9762;&#x7684;&#x5206;&#x6790;&#x4E5F;&#x5F88;&#x7B80;&#x5355;&#xFF0C;&#x5047;&#x8BBE;&#x5C06;&#x4E00;&#x4E2A;&#x5305;&#x5206;&#x6210; 3 &#x7247;&#xFF0C;&#x90A3;&#x4E48;&#x5E94;&#x5C06;&#x7B2C;&#x4E00;&#x4E2A;&#x548C;&#x7B2C;&#x4E8C;&#x4E2A;&#x5305;&#x7247;&#x7684;&#x7B2C;&#x4E00;&#x4E2A;&#x5B57;&#x8282;&#x7684;&#x7B2C;&#x4E00;&#x4F4D; FIN &#x8BBE;&#x7F6E;&#x4E3A; 0&#xFF0C;OpCode &#x8BBE;&#x7F6E;&#x4E3A; CONTINUATION_FRAME&#xFF08;&#x4E5F;&#x662F; 0&#xFF09;&#xFF1B;&#x7B2C;&#x4E09;&#x4E2A;&#x5305;&#x7247; FIN &#x8BBE;&#x7F6E;&#x4E3A; 1&#xFF0C;&#x8868;&#x793A;&#x8BE5;&#x5305;&#x81F3;&#x6B64;&#x5C31;&#x7ED3;&#x675F;&#x4E86;&#xFF0C;OpCode &#x8BBE;&#x7F6E;&#x4E3A;&#x60F3;&#x8981;&#x7684;&#x7C7B;&#x578B;&#xFF08;&#x5982; TEXT_FRAME&#x3001;BINARY_FRAME &#x7B49;&#xFF09;&#x3002;&#x5BF9;&#x7AEF;&#x6536;&#x5230;&#x8BE5;&#x5305;&#x65F6;&#xFF0C;&#x5982;&#x679C;&#x53D1;&#x73B0;&#x6807;&#x5FD7; FIN = 0 &#x6216; OpCode = 0&#xFF0C;&#x5C06;&#x8BE5;&#x5305;&#x5305;&#x4F53;&#x7684;&#x6570;&#x636E;&#x6682;&#x5B58;&#x8D77;&#x6765;&#xFF0C;&#x76F4;&#x5230;&#x6536;&#x5230; FIN = 1&#xFF0C;OpCode &#x2260; 0 &#x7684;&#x5305;&#xFF0C;&#x5C06;&#x8BE5;&#x5305;&#x7684;&#x6570;&#x636E;&#x4E0E;&#x524D;&#x9762;&#x6536;&#x5230;&#x7684;&#x6570;&#x636E;&#x653E;&#x5728;&#x4E00;&#x8D77;&#xFF0C;&#x7EC4;&#x88C5;&#x6210;&#x4E00;&#x4E2A;&#x5B8C;&#x6574;&#x7684;&#x4E1A;&#x52A1;&#x6570;&#x636E;&#x3002;&#x793A;&#x4F8B;&#x4EE3;&#x7801;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre class="language-"><code>//&#x67D0;&#x6B21;&#x89E3;&#x5305;&#x540E;&#x5F97;&#x5230;&#x5305;&#x4F53; payloadData&#xFF0C;&#x6839;&#x636E; FIN &#x6807;&#x5FD7;&#x5224;&#x65AD;&#xFF0C;
//&#x5982;&#x679C; FIN = true&#xFF0C;&#x5219;&#x8BF4;&#x660E;&#x4E00;&#x4E2A;&#x5B8C;&#x6574;&#x7684;&#x4E1A;&#x52A1;&#x6570;&#x636E;&#x5305;&#x5DF2;&#x7ECF;&#x6536;&#x5B8C;&#x6574;&#xFF0C;
//&#x8C03;&#x7528; processPackage() &#x51FD;&#x6570;&#x5904;&#x7406;&#x8BE5;&#x4E1A;&#x52A1;&#x6570;&#x636E;
//&#x5426;&#x5219;&#xFF0C;&#x6682;&#x5B58;&#x4E8E; m_strParsedData &#x4E2D;
//&#x6BCF;&#x6B21;&#x5904;&#x7406;&#x5B8C;&#x4E00;&#x4E2A;&#x5B8C;&#x6574;&#x7684;&#x4E1A;&#x52A1;&#x5305;&#x6570;&#x636E;&#xFF0C;&#x5373;&#x5C06;&#x6682;&#x5B58;&#x533A;m_strParsedData&#x4E2D;&#x7684;&#x6570;&#x636E;&#x6E05;&#x7A7A;
if (FIN)
{
    m_strParsedData.append(payloadData);
    processPackage(m_strParsedData);
    m_strParsedData.clear();
}
else
{
    m_strParsedData.append(payloadData);
}
</code></pre><h4 id="websocket-&#x538B;&#x7F29;&#x683C;&#x5F0F;"><a name="websocket-&#x538B;&#x7F29;&#x683C;&#x5F0F;" class="anchor-navigation-ex-anchor" href="#websocket-&#x538B;&#x7F29;&#x683C;&#x5F0F;"><i class="fa fa-link" aria-hidden="true"></i></a>WebSocket &#x538B;&#x7F29;&#x683C;&#x5F0F;</h4>
<p>WebSocket &#x5BF9;&#x4E8E;&#x5305;&#x4F53;&#x4E5F;&#x652F;&#x6301;&#x538B;&#x7F29;&#x7684;&#xFF0C;&#x662F;&#x5426;&#x9700;&#x8981;&#x5F00;&#x542F;&#x538B;&#x7F29;&#x9700;&#x8981;&#x901A;&#x4FE1;&#x53CC;&#x65B9;&#x5728;&#x63E1;&#x624B;&#x65F6;&#x8FDB;&#x884C;&#x534F;&#x5546;&#x3002;&#x8BA9;&#x6211;&#x4EEC;&#x518D;&#x770B;&#x4E00;&#x4E0B;&#x63E1;&#x624B;&#x65F6;&#x4E3B;&#x52A8;&#x53D1;&#x8D77;&#x4E00;&#x65B9;&#x7684;&#x5305;&#x5185;&#x5BB9;&#xFF1A;</p>
<pre class="language-"><code>GET /realtime HTTP/1.1\r\n
Host: 127.0.0.1:9989\r\n
Connection: Upgrade\r\n
Pragma: no-cache\r\n
Cache-Control: no-cache\r\n
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64)\r\n
Upgrade: websocket\r\n
Origin: http://xyz.com\r\n
Sec-WebSocket-Version: 13\r\n
Accept-Encoding: gzip, deflate, br\r\n
Accept-Language: zh-CN,zh;q=0.9,en;q=0.8\r\n
Sec-WebSocket-Key: IqcAWodjyPDJuhGgZwkpKg==\r\n
Sec-WebSocket-Extensions: permessage-deflate; client_max_window_bits\r\n
\r\n
</code></pre><p>&#x5728;&#x8BE5;&#x5305;&#x4E2D; <strong>Sec-WebSocket-Extensions</strong> &#x5B57;&#x6BB5;&#x4E2D;&#x6709;&#x4E00;&#x4E2A;&#x503C; <strong>permessage-deflate</strong>&#xFF0C;&#x5982;&#x679C;&#x53D1;&#x8D77;&#x65B9;&#x652F;&#x6301;&#x538B;&#x7F29;&#xFF0C;&#x5728;&#x53D1;&#x8D77;&#x63E1;&#x624B;&#x65F6;&#x5C06;&#x5305;&#x4E2D;&#x5E26;&#x6709;&#x8BE5;&#x6807;&#x5FD7;&#xFF0C;&#x5BF9;&#x7AEF;&#x6536;&#x5230;&#x540E;&#xFF0C;&#x5982;&#x679C;&#x4E5F;&#x652F;&#x6301;&#x538B;&#x7F29;&#xFF0C;&#x5219;&#x5728;&#x5E94;&#x7B54;&#x7684;&#x5305;&#x4E5F;&#x5E26;&#x6709;&#x8BE5;&#x5B57;&#x6BB5;&#xFF0C;&#x53CD;&#x4E4B;&#x4E0D;&#x5E26;&#x8BE5;&#x6807;&#x5FD7;&#x5373;&#x8868;&#x793A;&#x4E0D;&#x652F;&#x6301;&#x538B;&#x7F29;&#x3002;&#x4F8B;&#x5982;&#xFF1A;</p>
<pre class="language-"><code>HTTP/1.1 101 Switching Protocols\r\n
Upgrade: websocket\r\n
Connection: Upgrade\r\n
Sec-WebSocket-Accept: 5wC5L6joP6tl31zpj9OlCNv9Jy4=\r\n
Sec-WebSocket-Extensions: permessage-deflate; client_no_context_takeover
\r\n
</code></pre><p>&#x5982;&#x679C;&#x53CC;&#x65B9;&#x90FD;&#x652F;&#x6301;&#x538B;&#x7F29;&#xFF0C;&#x6B64;&#x540E;&#x901A;&#x4FE1;&#x7684;&#x5305;&#x4E2D;&#x7684;&#x5305;&#x4F53;&#x90E8;&#x5206;&#x90FD;&#x662F;&#x7ECF;&#x8FC7;&#x538B;&#x7F29;&#x540E;&#x7684;&#xFF0C;&#x53CD;&#x4E4B;&#x662F;&#x672A;&#x538B;&#x7F29;&#x8FC7;&#x7684;&#x3002;&#x5728;&#x89E3;&#x5B8C;&#x5305;&#x5F97;&#x5230;&#x5305;&#x4F53;&#xFF08;&#x5373; Payload Data&#xFF09; &#x540E;&#xFF0C;&#x5982;&#x679C;&#x6709;&#x63E1;&#x624B;&#x65F6;&#x6709;&#x538B;&#x7F29;&#x6807;&#x5FD7;&#x5E76;&#x4E14;&#x4E59;&#x65B9;&#x4E5F;&#x56DE;&#x590D;&#x4E86;&#x652F;&#x6301;&#x538B;&#x7F29;&#xFF0C;&#x5219;&#x9700;&#x8981;&#x5BF9;&#x8BE5;&#x5305;&#x4F53;&#x8FDB;&#x884C;&#x89E3;&#x538B;&#xFF1B;&#x540C;&#x7406;&#xFF0C;&#x5728;&#x53D1;&#x6570;&#x636E;&#x7EC4;&#x88C5; WebSocket &#x5305;&#x65F6;&#xFF0C;&#x9700;&#x8981;&#x5148;&#x5C06;&#x5305;&#x4F53;&#xFF08;&#x5373; Payload Data&#xFF09;&#x8FDB;&#x884C;&#x538B;&#x7F29;&#x3002;</p>
<p>&#x6536;&#x5230;&#x5305;&#x9700;&#x8981;&#x89E3;&#x538B;&#x793A;&#x4F8B;&#x4EE3;&#x7801;&#xFF1A;</p>
<pre class="language-"><code>bool MyWebSocketSession::processPackage(const std::string&amp; data)
{
    std::string out;
    //m_bClientCompressed&#x5728;&#x63E1;&#x624B;&#x786E;&#x5B9A;&#x662F;&#x5426;&#x652F;&#x6301;&#x538B;&#x7F29;
    if (m_bClientCompressed)
    {
        //&#x89E3;&#x538B;
        if (!ZlibUtil::inflate(data, out))
        {
            LOGE(&quot;uncompress failed, dataLength: %d&quot;, data.length());
            return false;
        }

    }
    else
        out = data;

    //&#x5982;&#x679C;&#x4E0D;&#x9700;&#x8981;&#x89E3;&#x538B;&#xFF0C;&#x5219;out=data&#xFF0C;&#x53CD;&#x4E4B;&#x5219;out&#x662F;&#x89E3;&#x538B;&#x540E;&#x7684;&#x6570;&#x636E;
    LOGI(&quot;receid data: %s&quot;, out.c_str());


    return Process(out);
}
</code></pre><p>&#x5BF9;&#x5305;&#x8FDB;&#x884C;&#x538B;&#x7F29;&#x7684;&#x7B97;&#x6CD5;&#xFF1A;</p>
<pre class="language-"><code>size_t dataLength = data.length();
std::string destbuf;
if (m_bClientCompressed)
{
    //&#x6309;&#x9700;&#x538B;&#x7F29;
    if (!ZlibUtil::deflate(data, destbuf))
    {
        LOGE(&quot;compress buf error, data: %s&quot;, data.c_str());
        return;
    }
}
else
    destbuf = data;

LOGI(&quot;destbuf.length(): %d&quot;, destbuf.length());
</code></pre><p>&#x538B;&#x7F29;&#x548C;&#x89E3;&#x538B;&#x7B97;&#x6CD5;&#x5373; gzip &#x538B;&#x7F29;&#x7B97;&#x6CD5;&#x3002;</p>
<blockquote>
<p>&#x7531;&#x4E8E;&#x516C;&#x4F17;&#x53F7;&#x6587;&#x7AE0;&#x6700;&#x5927;&#x662F; 5000 &#x5B57;&#x6570;&#x9650;&#x5236;&#xFF0C;&#x672C;&#x6587;&#x539F;&#x6587;&#x4E00;&#x5171;&#x6709; 12000 &#x5B57;&#xFF0C;&#x516C;&#x4F17;&#x53F7;&#x53D1;&#x6587;&#x65F6;&#x6709;&#x7701;&#x7565;&#x3002;&#x5982;&#x679C;&#x60F3;&#x83B7;&#x53D6;&#x5B8C;&#x6574;&#x7684;&#x6587;&#x7AE0;&#x8BF7;&#x5728;&#x3010;&#x9AD8;&#x6027;&#x80FD;&#x670D;&#x52A1;&#x5668;&#x5F00;&#x53D1;&#x3011;&#x516C;&#x4F17;&#x53F7;&#x540E;&#x53F0;&#x56DE;&#x590D; &#x5173;&#x952E;&#x5B57;&#x3010;websocket&#x534F;&#x8BAE;&#x5206;&#x6790;&#x3011;&#x3002;&#x83B7;&#x53D6;&#x6587;&#x4E2D;&#x5B8C;&#x6574;&#x6E90;&#x7801;&#xFF0C;&#x8BF7;&#x5728;&#x516C;&#x4F17;&#x53F7;&#x540E;&#x53F0;&#x56DE;&#x590D;&#x5173;&#x952E;&#x5B57;&#x3010;websocket&#x6E90;&#x7801;&#x3011;&#x3002;</p>
</blockquote>
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